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題名: Large-Scale Simulation of Watershed Mass Transport: A Case Study of Tsengwen Reservoir Watershed, Southwest Taiwan
作者: Liu, Ko-Fei;Wu, Ying-Hsin;Chen, Yi-Chin;Chiu, Yu-Jia;Shih, Shang-Shu
貢獻者: 地理學系
關鍵詞: Large-scale simulation;Watershed;Debris-2D;Sediment transport;Landslide
日期: 2013-06
上傳時間: 2015-04-29T04:08:55Z
出版者: Springer
摘要: We present the large-scale simulation of watershed mass transport, including landslide, debris flow, and sediment transport. A case study of Tsengwen reservoir watershed under the extreme rainfall triggered by typhoon Morakot is conducted for verification. This approach starts with volume-area relation with landslide inventory method to predict temporal and regional landslide volume production and distribution. Then, debris flow model, Debris-2D, is applied to simulate the mass transport from hillslope to fluvial channel. Finally, a sediment transport model, NETSTARS, is used for hydraulic and sediment routing in river and reservoir. Near the water intake at the reservoir dam, the simulated sediment concentration is in good agreement with the measured one. The proposed approach gives good prediction and should help the management of reservoir operation and disaster prevention.
關聯: Natural Hazards, 67(2): 855-867
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